Coolant Thermostat Housing Assembly for BMW 11512354056

Product Overview

This Thermostat Housing Assembly is supplied for BMW applications and is catalogued against OEM 11512354056. Matching starts from the reference rather than from a picture, which is what keeps a container of parts out of the returns pile. In service the part carries the wax element, housing, seals and — on mapped units — the heater and temperature sensor that govern warm-up. When it fails it usually shows leaking sensor bosses and elements that stick part open, and the driver sees a gauge that never settles in the normal band, higher fuel consumption and thermostat fault codes. Hunan Woojin Autoparts supplies it from a cooling-system range of more than 4000 types covering German, French, Japanese, American and Korean vehicles.

Key Benefits

• Inspection before despatch — Parts are inspected before they leave, which for this family means checking the sealing faces and the connector geometry that decide whether it fits.
• Built for the duty of the coolant control circuit — The part carries the wax element, housing, seals and — on mapped units — the heater and temperature sensor that govern warm-up, so the compound and the wall construction are matched to that circuit rather than to a generic hose spec.
• Aftermarket buyers, not one-off retail — Pricing and packing are set up for distributors and workshop chains buying by the carton, not for single-piece retail.
• Ordered by reference not by photo — The listing carries OEM 11512354056. You quote the number, we confirm against the same number, and the part that ships is the one on the invoice.

Application Scenarios

Scheduled cooling-system overhaul

The vehicle is in for a coolant leak and the workshop replaces the whole branch at once rather than chasing the next failure in a month. On this reference that means quoting 11512354056 with the quantity and letting the packing follow.

Warranty-expired fleet maintenance

A fleet past dealer coverage moves to independent supply and needs the same reference coverage at a working price. For 11512354056 the practical step is confirming the opening temperature, the housing outline and whether the unit is map-controlled before the order is placed.

Counter stock for a busy platform

BMW volume in the region justifies holding the line on the shelf instead of ordering it in per job. With 11512354056 on the list the rest of the coolant control circuit can be priced at the same time.

Who It Is For

• Workshop and fast-fit chains — replacing thermostat housing assemblys on BMW daily and judging a supplier on whether the part fits first time. For them 11512354056 is a line on a shelf, not a project.
• Online parts sellers — listing by OEM reference, where a mismatched number turns into a return and a negative rating. For them 11512354056 is a line on a shelf, not a project.
• Fleet and bus operators — running BMW vehicles past warranty and buying cooling-system parts by the box to keep downtime short. 11512354056 earns its shelf space through repeat demand on BMW platforms.

Problems It Solves

Reference mismatch

Visually identical parts carry different connector geometry between model years. Quoting OEM 11512354056 fixes the identity before money moves. For this thermostat housing assembly the answer is the reference, 11512354056, on every document.

Split ordering

Sourcing one hose from one supplier and the matching flange from another doubles the freight and the paperwork for the same repair. On 11512354056 that is settled before the quotation goes out.

Parts that are no longer produced

When the original reference is dropped, the repair still exists. Sample-based production and mould development keep the line alive. For this thermostat housing assembly the answer is the reference, 11512354056, on every document.

Technical Features

The part serves the coolant control circuit and carries the wax element, housing, seals and — on mapped units — the heater and temperature sensor that govern warm-up. Material for this reference is confirmed per enquiry. The listed opening temperature is 88°C, which is the figure that has to match the vehicle.

Matched to the circuit the part serves. Confirm the compound against the reference before ordering, because visually identical parts are moulded in different materials.

Specifications

Values marked TBC are not stated on the source catalogue. They are confirmed in writing on the quotation rather than estimated here.

Comparison With the Alternatives

Use Guide

1. Confirm the reference

   Match OEM 11512354056 against the number on the part you removed. Do not match on outline alone.

2. Check the interfaces

   Compare the opening temperature, the housing outline and whether the unit is map-controlled before the vehicle is stripped further.

3. Inspect on arrival

   Look for transit damage on sealing faces and connectors. Confirm the compound against the reference before ordering, because visually identical parts are moulded in different materials.

4. Fit with the original clamp style

   Reuse the clamp type the BMW platform was designed around, and fit any seal or O-ring supplied with 11512354056 rather than carrying the old one over.

5. Pressure check before handover

   Refill, bleed the circuit and check for cracked plastic housings at working temperature before the vehicle leaves.